Specification & BOQ for “Cold Storage Floor Insulation” with
“INSUBOARD” – Extruded Polystyrene Board.

SCOPE:

This specification covers Floor insulation system of Cold Storages using the “Insuboard” extruded polystyrene thermal insulation boards.

General:

1. The area where Floor insulation system needs to be installed shall be made free from all other activities that could disrupt the installation of the system.
2. All the products specified in this document shall be installed strictly in accordance with the manufacturer’s written instructions and by a specialist applicator approved by the manufacturer.
3. “INSUBOARD” to be used in the system shall be manufactured by SUPREME PETROCHEM LTD shall meet the key performance properties listed below against each.
4. The applicator shall ensure that the product in the system are received in good condition without damage and stored as per manufacturer’s instructions.

Key properties of the specified products:

​Property	Standard	​Unit	Value
Density	ASTM D 1622	​Kg/m3	​34-36
​Thermal Conductivity	​ASTM C 518-98	​W/m-K	​0.028
​Compressive strength	​ASTM D 1621-95	​Kpa	​≥300
Water Absorption by submersion (28 days)	​ASTM 2842	​% by Volume	≤ 1
Flammability	​DIN 4102 Part 1	​Building Material Class	B2 (difficult to ignite)

Floor Insulation – Cold Storage:

Providing and application of floor insulation treatment with 50 mm thick Insuboard (XPS) Extruded Polystyrene Board in double layer (50 mm + 50 mm), having thermal conductivity of 0.028 W/m.K, density 40 Kg/mtr.cub, compressive strength of > 400 kPa, water absorption of 0.2 % by volume,   B2 grade fire compliance, in the size of 600mm width x 1250 mm Length x 50 mm thick with shiplap joint, boards fixed in staggered / brick pattern, over the waterproofing / damp proofing layer. After the application of Insuboard, 200 GSM polypropylene geotextile to be used a separation layer before finishing the surface with reinforced cement concrete (RCC) as final finishing as directed by the Engineer In Charge as per the details below:

APPLICATION METHODOLOGY

• The civil contractor shall pour PCC concrete below raft/footing etc., and level it.  The PCC will have minimum thickness as specified by Structural Engineers or as specified by Engineer-in-Charge.  The PCC shall give honeycomb-free levelled surface.  The civil contractor shall cure the PCC by spraying water over it periodically. The PCC will be allowed to set for a minimum period of 7-10 days and then clean the PCC concrete surface thoroughly.
• Grind  or fill surface  at  cold  joints  where  each  concrete  pour  is  at  different  level to provide  smooth and  level surface.
• Providing & application of waterproofing /damp proofing treatment as per the direction of engineer in charge.
• Supplying & application of 50 mm thick Insuboard (XPS), Extruded Polystyrene Board, 40 kg/m3 density, > 400 kpa compressive strength & thermal conductivity 0.028 w/m.k, of size 600 mm x 1.25 mtr in 2 layers in staggered / brick pattern, over the waterproofing / damp proofing layer.
• Supply & application of 200 GSM polypropylene based geo-textile fabric to be used as separation layer.
• Providing & Laying Reinforced cement concrete (RCC) slab as per the direction of engineer in charge.

Budgetary Quotes :

​No.	Description	Unit	Rate	Qty	Amount
1	FLOOR INSULATION	​	​	​	​
1.1	Providing and application of floor insulation treatment with 50 mm thick Insuboard (XPS) Extruded Polystyrene Board in double layer (50 mm + 50 mm), having thermal conductivity of 0.028 W/m.K, density 40 Kg/mtr.cub, compressive strength of > 400 kPa, water absorption of 0.2 % by volume,   B2 grade fire compliance, in the size of 600mm width x 1250 mm Length x 50 mm thick with shiplap joint, boards fixed in staggered / brick pattern, over the waterproofing / damp proofing layer.​	SQM	0.00	0.00	0.00
1.2	Providing & Laying 200 GSM polypropylene based geo-textile fabric to be used as separation layer before final finish.	​SQM	​0.00	​0.00	​0.00
1.3	Providing & Laying Reinforced cement concrete (RCC) slab as per the direction of engineer in charge.	​0.00	​0.00	​0.00	​0.00

Above rates are indicative and on per sqm basis only.
Taxes, Freight & Overlaps/Wastages will be extra.

MATERIAL - GENERAL DESCRIPTION:

Extruded Polystyrene boards to be manufactured from General Purpose polystyrene granules though an automated extrusion process free of CFC blowing agents : preferably with a blend of co2 & ethanol : low Global warming index : the boards are 100 % closed cell structure with a unique properties of high compressive strength & a stable thermal conductivity properties over the life cycle of building etc.

APPROVED SYSTEM:

The boards of size 600mm width x 1250 mm length & 50 mm thickness with square edge to be laid in brick patterns in double layer. Insuboard to be covered with geotextile before laying final floor finish.

FINISH:

Reinforced cement concrete (RCC) slab as per the direction of engineer in charge.

THERMAL PERFORMANCE:

The extruded polystyrene EIFS system improves the thermal efficiency of the building by reducing the U value as per the prescribed norms in the ECBC codes depending on the type of building  in terms of hours of operations & geographical location. The thermal performance is very stable through out  the life cycle of the building. It improves the thermal comfort & also helps in optimising the loads thereby reducing the capex & operating cost of HVAC systems.

​FIRE PERFORMANCE:

XPS boards must be fully tested in accordance with DIN 4102 part 1 with regard to fire properties, flame spread , & surface burning characteristics . Also suitable Fire stops , sleeves, PU selant, Rockwool sleeves etc wherever there are electrical cut outs & opening. The boards must be of self extinguishing characteristic etc.

QUALITY ASSURANCE:

The suspended ceiling system is to be manufactured within a recognized quality management system as per ISO 4898 & ASTM C 576 requirements. Each batch should also have the Raw material GPPS test certificates.